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use std::fs::File;
use std::path::{Path, PathBuf};
use std::time::UNIX_EPOCH;
use source::Source;
use {ErrorKind, Result, ResultExt};
#[derive(Debug)]
pub struct Directory {
loc: PathBuf,
}
impl Directory {
pub fn new<P>(loc: P) -> Self
where
P: Into<PathBuf>,
{
Directory { loc: loc.into() }
}
fn path(&self, s_path: &str) -> PathBuf {
let mut path = self.loc.clone();
path.extend(Path::new(s_path).iter());
path
}
}
impl Source for Directory {
fn modified(&self, path: &str) -> Result<u64> {
#[cfg(feature = "profiler")]
profile_scope!("dir_modified_asset");
use std::fs::metadata;
let path = self.path(path);
Ok(metadata(&path)
.chain_err(|| format!("Failed to fetch metadata for {:?}", path))?
.modified()
.chain_err(|| "Could not get modification time")?
.duration_since(UNIX_EPOCH)
.unwrap()
.as_secs())
}
fn load(&self, path: &str) -> Result<Vec<u8>> {
#[cfg(feature = "profiler")]
profile_scope!("dir_load_asset");
use std::io::Read;
let path = self.path(path);
let mut v = Vec::new();
let mut file = File::open(&path)
.chain_err(|| format!("Failed to open file {:?}", path))
.chain_err(|| ErrorKind::Source)?;
file.read_to_end(&mut v)
.chain_err(|| format!("Failed to read file {:?}", path))
.chain_err(|| ErrorKind::Source)?;
Ok(v)
}
}
#[cfg(test)]
mod test {
use std::path::Path;
use super::Directory;
use source::Source;
#[test]
fn loads_asset_from_assets_directory() {
let test_assets_dir = Path::new(env!("CARGO_MANIFEST_DIR")).join("tests/assets");
let directory = Directory::new(test_assets_dir);
assert_eq!(
"data".as_bytes().to_vec(),
directory
.load("subdir/asset")
.expect("Failed to load tests/assets/subdir/asset")
);
}
#[cfg(windows)]
#[test]
fn tolerates_backslashed_location_with_forward_slashed_asset_paths() {
let test_assets_dir = Path::new(env!("CARGO_MANIFEST_DIR"))
.join("tests/assets")
.canonicalize()
.expect("Failed to canonicalize tests/assets directory");
let directory = Directory::new(test_assets_dir);
assert_eq!(
"data".as_bytes().to_vec(),
directory
.load("subdir/asset")
.expect("Failed to load tests/assets/subdir/asset")
);
}
}